Vacuum fuel-feeding system for gasolene-engines.



H. C. SUCKERL VACUUM FUEL FEEDlNG.-SYST-EM FOR GASOLENE ENGINES.

APPLICAI 0N FILED Aue.2'1. l9I5- 1,266,610. Patented Fell 19,1918,

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l in the position UNITED sTArEs PATENT OFFICE.

HAROLD O. SUCKERT, OF NEW YORK, N. Y.

VACUUM FUEL-FEEDING SYSTEM FOR GASOLENE-ENGINES.

Specification of Letters Patent;

Patented Feb. 19, 1918.

Application filed August 27, 1915. Serial No. 47,596.

tain new and usefulImprovements in Vupw um liuel-F ceding Systems "for (iusolcre IJnglues, of which the following a specifics tlon. In the installation of gusolene mes it has heretofore been the almostu'ruvei'sul practice to place the gusolene or fuel tool:

above the curimrctzr in order to secure a gravity feed of the fuel from the took to the carbureter. In the few instances 1X1 Wll'lflll the fuel tank has been placed below the cm bureter some form 01 pump has been used to maintain an air pro-sure in the solcue tank in order to force the gasolenc up to the carburetor. In other cases a vacuum. pump has been used to draw the gusolenc from the fuel tank to a point higher than the carbureter and to then feed. the gasolene by grav- This invention remeans.

It isthe main object oi? this invention to simplify the vacuiun apparatus by means of which the gesolene drown from. the supply tank and delivered into the smell gravity tank from which it is ted to the carbureter.

Another object of the invention is to dispense with all floet-operetcd devices and to provide an apparatus which will bevery simple in construction and positive and re liable in operation.

Other objects and advantages of the invention will appear hereinafter.

In the drawings,- Figure 1' is an outline view of my improved fuel feeding system applied to a gasolene engine;

Fig. 2 a. vertical sectional. view of the 'feed tank showing the port n the position which they occupy When gmsoleoc is being drawn from the storage tank into the feed tank Fig. 3 a. similar view showing the parts which they occupy when asolene is being delivered from the pumpmg chamber into the feed tank;

Fig. 4 avertical sectional View showing a "buretcrand 4 the fuel tank.

slightly modified form of the pumping apparatus; and

Fig 5 detail sectional view of the valve for closing communication between the pumping chamber and the suction appurutus.

Referring to the various parts by numerals, 1 designates the engine, 2 the manifold through which the gas from the carbureter is conducted to the engine intake; 3 the can The gravity 'ccd tank 5 is located in any convenient position-ebove the carbureten preferably un-- der the hood of the engine, as indicated in Fig, l. The lower end of this grovit y feed tank is connected by u pipe 6 to the carburetor. and through this pipe fuel is fed by gravity. The fuel tank 4- is connected to the pumping apparatus through a pipe T and said apparatus is connected to the nmnifold of the engine through a pipe 8.

In the feed tank 5 is located a, transverse partition 9, said partition dividing the tank into a pumping chamber 10 and a feeding chamber 11, this latter chamber being connected to the carburetor by pipe 6. The partition forms the bottom of the pumping chan'iber l0 and a flop valve 12 controls com muo'icotion between said chanlbcr and the fuel feeding chamber; and the bottom Wall 9 inclines downwardly to the discharge opening 13 controlled by the said valve. The upper end of the pumping chamber 10 is closed by a cap 1 1 in which is formed a valve chamber 15. Opening into this chamber through the top wall exhaust port 16 and connected to this port is the suction pipe 8 leading from the engine. Through the cap 145 is formed a vent 17, said vent being close to the exhaust port 16. c

In the pumping chamber near the upper end thereof, is mounted a vertical compartment 18; and in said compartment is a pump bucket 19 said bucket being maintained normally in'its upper position by means of a. spring 20 which supports said bucket, Pivotally connected to the upper end of the pump bucket is a lever arm 21, said arm being pivoted at 22 and carrying a valve arm 23. In the upper end of this valve arm is mounted a ball valve 24 which is pressed outwardly by a spring 25. Thisball valve,

thereof '1s a suctlontor,

the upper position of the pump bucket, closes the vent 17, as shown in Fig. and in said arm is swung into position toclosc the Sport 16, as shown clearly in Fig. 8. The spring-pressed valve ball serves as a yieldablc latch-r lock to hold the pump bucket in its positions; Secured to tho com pantment 18'and extending through the wall thereof is a siphon 26, the longci= cudof said s phon extending down into line pumping chamber, the' Shorter arm thereof extending into the pump bucket and near if) the bob tom thereof when the said bucket is in its upper position. Thepumpbucket is slotted at '27 to permit the bucket to move vertically. The operation of the apparatus thus faidescribed may be briefly set forth as follows: Assum ng the puniping chamber to be einptied of-gasolencuihe parts will be in the position shown in Fig 2Whercin tbevent i7 v is closed and the exhaust port 16 is open, 3 I When the engine is in operation tbcre will V -be sufiicieut suction through pipe to on.v 2. haust air from the pumping ch amber if), and "this will result ina flow-oi gas lenc through pipe 7. into the pumping cbarnbcr. Gasolene iviii'be "'c .miui'atcd in tiifl'fiiiilm'bt? .ifL the suctionklirongh pipe 8 being .30 bold the flap valve 1?: closed. t t frise in the siphon tube 26 and when the level tbcreofl'has reached the top of the siphon gasclene will flow into the pump bucket 19, filling the same up. to ill1e slot 2?. The 85 w I l t of the gasoiene thusaccumulated in the bucket will be sufiicient to depress it and t o the valve 2% over to the port 16, therey opening-the vent and closiugthe exhaust ort As soon as the vent port is opened the valve 12 will open and permit the acculatedgasolcnc to iioiv into time feed tank. was ne from the pump bucket will be; sip ned back into the feed tank and the said b ket y w ll then raised by spring" 20, t rning valvefii io ibe rent 1? so I r} e ution of drawing asoienc into roping chamber wili be rc 'ieated 4; shown slightly modified 0' hevalve operating means. In this n t-he bucket 19 is connected to. of av lever 21*, the other arm of said carrying a valve 24?. In this form of device the lever is straight instead of mg angular as shown in Fig. 2. The oper' n if the device, however, is precisely the astbat heretofore described. Yhatl claim is: A fuel feeding; apparatus comprising ng=tankabove the level oftvbe carluu'etei; p mping chamber avenged to discharge the feeding tank and provided with a olne iuletgineans connecting the pumphamber. with the intake of the engine. as connecting the said chamber with the the. lower position of the pump bucket the fli l tunicacarburetem a gasolci'ie engine,

fuel tank, a movable pump bucket within the ipuntiping chamber, means to charge said bucket with gasolcne when the accumulated gasolene rises to a. predetermined height in nu id chamber, valve mechanism, means Whereby the clia rged' bucket will operate said valve mechanism to stop the gasolene inflow and open the pumping chamber to the atmospliers;- means whereby upon opening said chamber to the atmosphcre'the accumulated Qasolcnc therein will be discharged into the feeding tank, and means whereby. the bucket will be emptied after the pumping chamber is discharged,

2. The combination oi? a feed tank, a pumping chamber havingan inlet rid a vent, suction operated rneafis for accumulating fluid in said pumping chamber, a valve mechanism, controlling communication between the pmn'ping chamber and the tin-id in: let, a movable pump bucket in the pumping chamber; means for charging said bucket when the fluid-in the pumpin chamber has 'Hiifiilfid a predetermined, leve means connecting said bucket to the valve mechanism whereby when the bucket is charged the valve mechanism will be operated toopen the ventof' the pumping chamber and stop ,ibo flow of fluid into said chamber, and means controlling communication be tween the pumping chambi; and the feed tank, said last mentioned means operating to discharge the contents of the pumping cham" ber when said cbamberis vented. I v

3, The combination of a feed tank, a pumping chamber having an inlet-and a vent, suction operated means for accumulating fiuid in said pumping "chamber, a. valve mechanism controllin communication be tween the pumping cbamber and the fluid iniet;a movable pump bucket in the pumping cbarnben a siphon connecting the pump ing chamber witheaid bucket, said siphon charging the bucket when the fluid in the pumping chamber has reached a predetermined level and serving to discharge the contents of the b cliei"v when the fluid in the pumping chamber is discharged, means connecting said. bucket to the valve mechanism whereby when the bucket is charged the valve mechanism will be o'perated'to open the vent; to the pumping chamber and stop the flow of fluid into said chamber, and means for-controlling communication between-the pumpin tank, said last mentioned means-operating to discharge the contents of the pumping chamber when said chamber is-vented.-

In combination with a 'asolene engine having a carbureter, a gas lene funk, and means for feeding gasolene from saidtank to said carburetor embodying a ump chamber provided with an outwardly-opening valve-at its lower end and Witlhflil exhaust porit and a vent port at its .upperendnpipe chamber and'the feed connecting the upper end of the pump chamher to the gasolene tank and another pipe connecting the exhaust" port to the intake of said engine, a single valve adapted to be shifted from the vent port to the exhaust port and vice versa, and. means in the pump chamber for normally holding the valve so as to close they vent and for automatically opening the vent and closing the quantity of gasoene accumulates in the pump chamber, the

suction created by the valve at chamber normally-closed and also ga solene into In testnnon signature.

the engine serving to hold the lower end of the pump to draw the pump chamber.

y whereof I hereunto afiix my HAROLD G. SUCKERT. 

